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<i>Eucalyptus</i> ESSENTIAL OIL AS BIO-STIMULATOR OF THE GROWTH OF <i>in vitro</i> ECTOMYCORRHIZAL FUNGI

By Ricardo Bemfica Steffen, Zaida Inês Antoniolli, Gerusa Pauli Kist Steffen, Rodrigo Josemar Seminoti Jacques, Marcos Leandro dos Santos, Helena Teixeira Godoy and Stanislau Bogusz Júnior

Abstract

<p><span class="hps"><span lang="EN"><a>http://dx.doi.org/10.5902/198050989285</a></span></span></p><p><span class="hps"><span lang="EN"><a></a>The secondary metabolites</span></span><span lang="EN"> <span class="hps">extracted</span> <span class="hps">from</span> <span class="hps">forest species</span> <span class="hps">known as</span> <span class="hps">micossimbiontes</span> <span class="hps">can</span> <span class="hps">stimulate</span> <span class="hps">the growth</span> <span class="hps">of</span> <span class="hps"><em>in vitro</em> ectomycorrhizal</span> <span class="hps">isolates</span>. W<span class="hps">e determined</span> <span class="hps">the effect</span> <span class="hps">of</span> <span class="hps">concentration</span> <span class="hps">of</span> <span class="hps"><em>Eucalyptus</em></span><em> <span class="hps">grandis</span></em> <span class="hps">essential</span> <span class="hps">oil</span> <span class="hps">in stimulating</span> <span class="hps">growth</span> <span class="hps">of the</span> <span class="hps">ectomycorrhizal</span> <span class="hps"><em>Pisolithus</em></span> <span class="hps">sp</span>. <span class="hpsatn">(</span>UFSC <span class="hps">Pt</span> <span class="hps">24</span> <span class="hps">and</span> <span class="hps">UFSC</span> <span class="hps">Pt</span> <span class="hps">188)</span>, <span class="hps"><em>Pisolithus</em></span><em> <span class="hps">microcarpus</span></em> <span class="hpsatn">(</span>UFSC <span class="hps">Pt 116</span>) <span class="hps"><em>Chondrogaster</em></span><em> <span class="hps">angustiporus</span></em> <span class="hpsatn">(</span>UFSC <span class="hps">Ch</span> <span class="hps">163</span>), <em>Scleroderma <span class="hps">citrinum</span></em> <span class="hpsatn">(</span>UFSC <span class="hps">Sc</span> <span class="hps">124)</span> <span class="hps">and</span> <span class="hps"><em>Suillus</em></span><em> </em><span class="hps">sp</span>. <span class="hpsatn">(</span>UFSM <span class="hps">RA</span> <span class="hps">RA</span> <span class="hps">UFSM</span> <span class="hps">2.2 and</span> <span class="hps">2.8</span>) <span class="hps">in</span> <span class="hps">liquid culture medium</span>. <span class="hps">After</span> <span class="hps">a period of</span> <span class="hps">25 days</span> <span class="hps">of incubation</span>, <span class="hps">we evaluated</span> <span class="hps">the</span> <span class="hps">morphology and</span> <span class="hps">growth</span> <span class="hps">of</span> <span class="hps">the isolates.</span> <span class="hps">The addition</span> <span class="hps">of</span> <span class="hps">essential</span> <span class="hps">oil</span> <span class="hps">at</span> <span class="hps">concentrations</span> <span class="hps">from 20 to 30</span> µ<span class="hps">L</span> <span class="hps">L</span><sup>-1</sup> <span class="hps">promoted</span> <span class="hps">mycelial growth</span> <span class="hps">in vitro</span> <span class="hps">in</span> <span class="hps">isolated</span> <span class="hps">Pt</span> <span class="hps">24</span> <span class="hps">UFSC</span>, <span class="hps">UFSC</span> <span class="hps">Pt</span> <span class="hps">116</span>, <span class="hps">Ch</span> <span class="hps">163</span> <span class="hps">UFSC</span>, <span class="hps">UFSC</span> <span class="hps">Sc</span> <span class="hps">124</span>, <span class="hps">UFSM</span> <span class="hps">RA</span> <span class="hps">RA</span> <span class="hps">UFSM</span> <span class="hps">2.2 and</span> <span class="hps">2.8</span>. <span class="hps">The</span> <span class="hps">addition</span> <span class="hps">of</span> <span class="hps">essential oil</span> <span class="hps">at a concentration of</span> <span class="hps">20</span> µ<span class="hps">L</span> <span class="hps">L</span><sup>-1</sup> <span class="hps">resulted in</span> <span class="hps">an increase</span> <span class="hps">in the diameter</span> <span class="hps">and</span> <span class="hps">branching</span> <span class="hps">hyphae</span> <span class="hps">of</span> <span class="hps">isolates</span> <span class="hps">UFSC</span> <span class="hps">Pt</span> <span class="hps">116</span> <span class="hps">and</span> <span class="hps">Pt</span> <span class="hps">24</span> <span class="hps">UFSC</span>. <span class="hps">The use</span> <span class="hps">of</span> <span class="hps">essential oil</span> <span class="hps">in the preparation</span> <span class="hps">of</span> <span class="hps">culture media</span> <span class="hps">for the</span> <span class="hps">growth of</span> <span class="hps">ectomycorrhizal</span> <span class="hps">isolates</span> has <span class="hps">shown</span> <span class="hps">to be</span> <span class="hps">efficient and</span> <span class="hps">to increase</span> <span class="hps">the</span> <span class="hps">mycelial mass of</span> <span class="hps">the fungus</span>.</span></p

Topics: crescimento miceliano, metabólitos secundários, produção de inóculo, Agriculture, S, Forestry, SD1-669.5
Publisher: Universidade Federal de Santa Maria
Year: 2013
DOI identifier: 10.5902/198050989285
OAI identifier: oai:doaj.org/article:e1a5bea5004e4f80859a0e2003f80cdd
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